Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
hang lai » hang tai, hang hai, hang loi
ban hang » ngan hang
chat xuc » chat huu, cam xuc, chao xu
chau tre » chay tren, chau tho, cho tre
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
hieu ve » hieu va, hieu van
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat san ((ty nang) OR (ty hang)) x hoi. hieu ve ((chat xuc) or (cham soc)) ban hang lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat san ((ty nang) OR (ty hang)) x hoi. hieu ve ((chat xuc) OR (cham soc)) ban hang lai chau tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat san ((ty nang) OR (ty hang)) x hoi. hieu ve ((chat xuc) or (cham soc)) ban hang lai chau tre".
• Adding a wildcard symbol may retrieve word variants: thuat san ((ty nang) OR (ty hang)) x hoi. hieu ve ((chat xuc) or (cham soc)) ban hang lai chau tre*.